Water, pH and Macromolecules
The lone pair electrons on oxygen in a H20 molecule

are not important for the properties of water
carry a partial negative charge
form covalent bonds in ice
carry a partial positive charge

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
Which of the following statements about covalently bonded molecules is false?

Such molecules often result from the interaction of ionized atoms
Electrons are shared between the atoms that make up the molecule
The chemical bonds that hold the molecule together are relatively strong
Noncovalent bonds may also be present, especially if the molecule is large

ANSWER DOWNLOAD EXAMIANS APP